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T1 CSU/DSU ASE
With DSX-1, Drop-and-Insert capabilities
Key features
Inband management capabilities
Multi-Protocol or IP Transport software
Service Level Agreement (SLA) metrics
Drop-and-Insert capabilities through
DSX port
Voice over IP (VoIP) analysis capability
Application analysis capability
LMI spoofi ng
LAN management port
Power loss detection
Realtime events
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The Visual UpTime® Select™ T1 CSU/DSU ASE is
deployed on a T1 access line at the demarcation point
between the provider network and customer premises.
It supports full and fractional (FT1) T1 networks and
provides connectivity through V.35 and additional
digital cross connect signal (DSX-1) interfaces.
The ASE supports Multi-Protocol software for deploy-
ment in standard frame relay or HDLC networks and
IP Transport software for deployment in frame relay or
HDLC-based networks that use IP switching.
In addition to performing standard CSU/DSU
functions—such as BER tests, loopbacks, and power
failure detection—the ASE is capable of inserting
management traffi c.
The ASE’s “drop-and-insert” feature provides a
secondary DSX-1 port that can connect to a Private
Branch Exchange at a customer’s site. T1 Timeslots
can be segmented for a PBX on the same circuit car-
rying data traffi c (see fi gure).
T1 CSU/DSU model 807-0109 rear view
T1 CSU/DSU model 807-0109 front view
T1 CSU/DSU model 807-0109 position on network
Visual UpTime Select
ASE model 807-0109
T1 Access
Line
Visual
UpTime
Select
Server
V.35
Line
Optional LAN
Connection
CSU/DSU
ASE
Wide Area
Network
PBX
PBX
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